`BR-TMP-6`

EN 16931 · validation rule

EN 16931Warning

A date in the UBL document is not in the format YYYY-MM-DD (e.g. 2026-09-07). The sender must fix cbc:IssueDate, cbc:DueDate, cbc:ActualDeliveryDate, period dates etc.; time zones or time parts are not allowed.

Field: document.issue_date (BT-2) and other dates
Rule set: EN 16931
Rule-set version: EN 16931 validation artefacts 1.3.17 · in force since 2026-10-13 · Rule-set changelog
Who has to fix it: The sender

This is a property of the file you received, so it cannot be corrected on your side without changing the document — ask the supplier to reissue it.

Check your own invoice

Drop the file that failed. We parse it, run the official rule sets against it and list every finding with a fix — 20 invoices per day, no key, nothing stored.

Open the live demo

Same explanation over the API: GET /v1/rules/BR-TMP-6?lang=en